A.C. · A. Claus · k.A. · K. C.
| title | ISBN-13 | year of publication |
|---|---|---|
| Basic Goals in Spelling | 978-0-07-034658-1 | 1984 |
| Basic Goals In Spelling | 978-0-07-034314-6 | 1976 |
| Basic Goals in Spelling Teacher's Edition | 978-0-07-034666-6 | 1984 |
| Modern American Spelling | 978-0-07-033941-5 | 1971 |
| N | 978-0-07-034637-6 | 1984 |